Eye mask having multi-piece wide angle viewing lens

ABSTRACT

A diving mask having a lens providing a wide view field, which is formed by glueing together of multiple glasses, using a glue with elastic and flexible properties. The planes of the connection between the glasses is designed to overlap or be parallel with the line of sight.

RELATED APPLICATION

[0001] This is a Continuation of U.S. Ser. No. 09/568,159 filed on May10, 2000 and currently pending.

FIELD OF THE INVENTION

[0002] The present invention relates to a diving mask, especially, toproviding a lens with wider view field and frame structure.

BACKGROUND OF THE INVENTION

[0003] The angle of view field provided by general diving mask withsingle viewing window (single lens) or double viewing windows (doublelenses) is narrower than the ordinary view field of a person. The divingmask with three viewing windows or four viewing windows is commerciallyavailable at present (such as M30-M40 produced by TABATA CO. CTD; Hawaii3 produced by Aqua Lung America, Inc., WM-7302P, WM-7401 produced byUNIDIVE DIVING INDUSTRY CO., LTD etc.), its left and right side viewingwindows are viewing windows integrating transparent material with theframe body or inserting two pieces of plane glasses in left and rightsides. The diving mask provided by above-mentioned three viewing windowsor four viewing windows is practically limited to the “frame edge” (asshown in FIG. 6) which is provided between the front viewing window andleft-right viewing windows, the view field is influenced, so that theeffect is not good.

[0004] According to the above-mentioned position, there is a designwhich is made of curved glass and can provide a wide view field, butwhich is not popular because the cost of building is too expensive. Theglass used as lens must be “tempered glass” which is not easily brokento cause a sharp and dangerous state. Most tempered glasses are planar.When a non-planar state is to be made, it is not only difficult inmanufacturing, but also is very expensive and is not adaptable to massproduction. Also, problems of quality such as thickness, planeness andtransparency are not easily overcome.

SUMMARY OF THE INVENTION

[0005] The present invention is a diving mask which can provide a widerview field, and especially relates to its lens structure. A lensproviding a front and side view field is connected by glueing “temperedglass” with “tempered glass”, a structure without a longitudinal framebetween the front viewing window and the side viewing window of thediving mask is formed by means of the lenses which are connected with asub-frame, skirt and main frame.

[0006] The slope-connection plane for the glued position betweenabove-mentioned glasses is designed with an angle which is parallel (oroverlap) with the “line of sight”, which is only a thin line, so thathindrance or influence to the view field is very slight.

[0007] The glue for connection between the above-mentioned glasses canbe UV silicone glue which can provide not only a good waterproofconnection, but also has elastic and flexible properties between theglasses, so that movement through a small angle between two glasses canbe made.

[0008] The lens structures can be glued by glass which is more than twopieces (such as three pieces or four pieces etc.), when using theabove-mentioned constitutional characteristics.

[0009] The lens of the diving mas can be a single lens with a lens oneach left and right side, when using the above-mentioned constitutionalcharacteristics.

[0010] The problems of safety, mass production and cost related to thediving mask can be solved because the lens structure provided by thepresent invention can use “planar” and “tempered glass” as the material,except that it provides a wider view field during diving.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIG. 1 is a perspective exploded view of the present invention.

[0012]FIG. 2 is a perspective view of the invention.

[0013]FIG. 3 is a schematic view of fitting state for the lens of thepresent invention with the line of sight.

[0014]FIG. 4 is a perspective view of another embodiment for the lens ofthe present invention.

[0015]FIG. 5 is a view of another embodiment for the diving mask of thepresent invention.

[0016]FIG. 6 is a perspective view of a conventional diving mask.

DETAILED DESCRIPTION OF THE INVENTION

[0017] As shown in FIG. 1, the constitution of the present inventionincludes a sub-frame 10, one lens 20, skirt 30 and a main frame 40.

[0018] The sub-frame 10 is provided in the front of the lens 20, whichcan be integrated with the main frame 40 by means of a clicking member,the lens 20 and the frame edge 31 of the skirt 30 are clicked betweenboth sides. Both side frames 11, 12 of the sub-frame 10 structure forthe present invention are in a sweepback state, its sweepback angle isfitted with the form of lens 20.

[0019] The lens 20 includes front glass 21 and side glasses 22, 23 inits sides. The front glass 21 and side glasses 22, 23 are connected byglue, such that water or liquid cannot be passed through. The glue canbe selected materials such as UV silicone glue. In addition to having awatertight function, it is also quite elastic and flexible. Thus, thewatertight connecting state can remain even if the front glass 21 andside glasses 22, 23 are slightly deformed.

[0020] The skirt 30 provided behind the lens 20, is made fromtransparent plastic materials (such as clear silicone etc.). The frameedge 31 of the skirt 30 is fitted with the edge 24 of the lens 20, andis connected in the frame slot 41 of the main frame 40.

[0021] The main frame 40 is analogous to a conventional main frame, witha frame slot 41 and several connecting clicking members 42 providedthereon. Sub-frame 10, lens 20 and frame edge 31 are placed on the frameslot 41, and the diving mask is connected in a stable state by means ofthe connection between the connecting clicking member 42 and clickingmembers of sub-frame 10.

[0022] The schematic view of the lens 20 relative to a line of sight foreyes 50 is as shown in FIG. 3. The connecting planes 24, 25 are betweenthe front glass 21 and side glasses 22, 23, with directions of theplanes and the direction for a line of sight for eyes 50 are designed tobe parallel or overlap state, so that the influence of the connectingplanes 24, 25 on the line of sight is slight.

[0023] Another embodiment of the lens is as shown in FIG. 4, in whichthe front glass 61, has a multiple-glass structure provided on eachside, i.e. the side glass 62, 63, 64, 65 are provided on each side. Thetangent planes of each connection plane 66, 67, 68, 69 therein isaligned with the line of sight.

[0024] Another embodiment of the diving mask is shown in FIG. 5, whereinthere are two two-piece lenses 70, 80 provided on each side.

[0025] The above-mentioned are embodiments, the main characteristic ofthe present invention is the construction of the “lens”. The structureof sub-frame, skirt and main frame or the connecting fashion as notlimited to the above-mentioned description.

1. A diving mask with wide view field, its constitution includes asub-frame, a lens, a skirt and a main frame: sub-frame: its frame edgeis fitted with frame edge of lens, its clicking lens and skirt areintegrated with the main frame; lens: which is connected by front glassand side glass of both sides in gluey fashion; skirt: which has a frameedge connecting periphery of lens, the frame edge can place in the frameslot of main frame; main frame: which has a frame slot connectingperiphery of skirt and lens, frame edge of sub-frame, can be integratedwith the sub-frame; the characteristic of above-mentioned constitutionis having a lens with wide view field, the diving mask connected withsub-frame, skirt and main frame can provide a wider view field.
 2. Thediving mas as claimed in claim 1, wherein said the glue between thefront glass and the side glasses is a material having elastic andflexible.
 3. The diving mas as claimed in claim 1, wherein the connectedplane between the front glass and the side glasses is toward paralleledor overlap state with the line of sight for eye during using state. 4.The diving mas as claimed in claim 1, wherein the lens is connected withmultiple glasses.
 5. The diving mas as claimed in claim 1, wherein thelens can be multiple glass structure which is in each left-right side.